Device for atomizing fluids



Feb. 5, 1957 w. KESER DEVICE FOR ATOMIZING FLUIDS Filed April 25; 1955 INVENTOR: WALTER KESER,

United States Patent "ice A 2,780,494 DEVICE FOR ATOMIZING FLUIDS Walter Keser, Stuttgart-Feuerbach, Germany, assignor to Lufttechnische Gesellschaft m. b. H., Stuttgart-Zulfenhauseu, Germany, a corporation of the Federal Republic of Germany Application April 25, 1955, Serial No. 503,552

Claims priority, application Germany October 28, 1949 2 Claims. (Cl. 299-106) The invention relates to spray nozzles for atomizing liquids.

These spray nozzles which are often widely distributed must be cleaned from time to time and this is particularly necessary if incompletely purified liquids are to be distributed by spraying.

In order to satisfactorily comply with this requirement the nozzle bodies must be separated from time to time from the supply sources of the liquids and the distributing tubes; this is particularly indispenable if impurities such as lime deposits are to be removed which for their elimination require a chemical treatment.

Heretofore these spray nozzles were often screwed onto nipples or they were with a male thread screwed into joints. It also happens that the nozzles are directly screwed into the distributing tube.

In all these cases the nozzle holders must be tightened for the completion of each new joint which in view of the generally large number of the spray nozzles within the range of the entire installation represents a time consuming and diflicult work. Another disadvantage results from the wear caused by the frequent application and removal of the screws. This is particularly true if nozzles are used having a nozzle body which consists of a non-metallic, for instance ceramic material. Materials such as porcelain, artificial resins or glass are satisfactorily usable for a purification only carried-out with chemicals; however, they are not usable for the application of screw threads and for a repeated application and liberation by screwing since the threads become soon unusable and are extremely sensitive to mechanical forces.

It is the main object of the invention to create a novel cooperation between the liquid distributing source or tube and the spray noules which enables a simple and quick removal of the nozzle for purification purposes and rearrangement of the same and takes in consideration the type of the materials from which the nozzles are made.

The invention is illustrated in the accompanying drawing in which:

Fig. 1 is a side view of the portion of the tube carrying a spray nozzle; and

Fig. 2 is a vertical sectional view on line 22 of Fig. 1.

A tube 1, of which a portion is shown in the drawing and which forms a part of a plant for the distribution of a liquid is provided with small upwardly narrowing inner bores not shown in the drawing. At these bore provided places of the supply tube 1 a nozzle body 2 preferably made of porcelain or of any other corrosion resistant non-metallic material is connected with the tube. The bore leads to a spray opening 3 located in a plate-shaped mouth piece 4 which preferably is detachably connected with the tubular nozzle body 2.

For its operative connection with the tube 1 the nozzle body 2 is provided with two opposite lateral projections 5, 6. These projections carry two closed bows 7, 8 which at their lower ends are movably connected with 2,780,494 Patented Feb. 5, 1957 a bent metal clip 9 surrounding the lower side of the tube 1. Whereas the how 8 is directly connected with the nozzle clip 9 the opposite how 7 is at its end connected with the bow shaped lever 10 and the latter is connected with clip 9.

The device is in Figs. 1 and 2 shown in its position for the distribution of a liquid through the spray opening 3, the mutual pressure between the tube and the spray nozzle being attained by the cooperation of the bows 7, 8 and the clip 9.

To secure a satisfactory seal and to preserve a proper operation of the fragile nozzle body 2 an elastic packing 11 is provided between the nozzle body and tube 1. The liquid permeable packing 11 is shaped in conformity with the shape of the tube 1 and the shape of the lower face of the nozzle body 2; it may be provided with a cylindrical extension which extends into a corresponding recess of the nozzle body and secures the packing in its proper working position.

In order to detach and to clean the nozzle body 2 the lever 10 is rotated from the position shown in the drawing about its connection with the clip 9 whereby the bow 7 is lifted from the projection 5; this action frees the entire device and the nozzle body 2 can be removed from the tube.

The essential characteristics of the invention consist therein that the connection between the nozzle body and the liquid supplying tube is effected without the application of screw joints and that simultaneously a reliable mounting and sealing as well as a simple demounting and remounting of the nozzle body is secured. Since the mounting device while removing the nozzle body is separated from the latter its metallic parts cannot get into contact with the eventually used chemical purifying substances.

The elastic packing 11 may be provided at its lower face with an elastic projection 13 adapted to enter into a correspondingly shaped recess of the tube 1.

Since certain changes may be made in the above device and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is accordingly desired that in construing the breadth of the appended claims they shall not be limited to the specific exemplifications of the invention described herein.

Having thus described the invention, what I claim as new and desire to be secured by Letters Patent, is as follows:

1. A device for atomizing fluids comprising a tube for the supply of said fluids, at least one spray nozzle and a nozzle holder connected with and extending from said fluid supply tube, two lateral opposite projections attached to the tube connected bottom portion of said nozzle holder, means carried by said projections to tightly connect said supply tube and said nozzle holder and to loosen said connection, said means comprising two closed bows downwardly extending towards and along said tube, a clip extending across the bottom portion of the tube and being connected in the operational position of the device with the lower ends of said bows and a lever operatively connected with the lower ends of said bows and the ends of said clip to operate the device.

2. A device for atomizing fluids comprising a tube for the supply of said fluids, at least one spray nozzle and a nozzle holder connected with and extending from said fluid supply tube, two lateral opposite projections attached to the bottom portion of said nozzle holder, a spray opening in the uppermostportion thereof and means carried by said projections to tightly connect said tube and said nozzle holder with each other and to loosen said connection, said nozzle holder being shaped at its lower end in conformity with the curvature of the tube and an elasticipaeking being located between the tube and the lower end of said spray nozzleholder, said packing being provided at its lower face with an elastic projection adapted to enter a-complemental1y shaped recess of the tube.

References Cited in the file of this. patent UNITED STATES PATENTS 572,606 Jewell Dec. 8, 1896 v4 Bresee et a1. Sept. 19, Girlin'g Nov. 27, Van Doren June 26, Crowe Mar. 14, Aker Aug. 7, Carr July 7,

FOREIGN PATENTS Germany June 14, Germany Apr. 23, 

